Granted Patent
Utility
US 5,247,271 · App. 08/013,667
Superconducting solenoid coil
Inventors:
Toshimi Kawamura, Masao Morita
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Jan 28, 1993
Inventors
Toshimi Kawamura
Masao Morita
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.